US2761084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for intensifying images of invisible radiation
Assignee: Individual
•
Filing: 1949-03-30
•
Granted: 1956-08-28
•
Expires: 1969-03-30
Abstract
No abstract record available.
Inventors
- 👤 Sheldon Edward Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:44
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/43; H01J29/38; H01J29/385; H01J29/395; H01J31/00; H01J31/08; H01J31/49; H01J31/50; H01J31/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2297478A
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US2525832A
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US2495697A
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US2451005A
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US2555545A
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US2550316A
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US2523132A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |